Persistent overcast skies and moderate southeasterly winds have capped daytime heating in Cape Town on October 2, aligning official forecasts and real-time observations with a maximum of 19°C. Multiple meteorological models, including those from the South African Weather Service and global ensembles, indicate limited solar insolation under high cloud cover, with afternoon temperatures peaking near this threshold amid surface pressures around 1023-1025 hPa. This consensus, reinforced by hourly data showing gradual rises to but not beyond 19°C, underpins the market's 100% implied probability. Minor variations in station measurements or localized microclimate effects could theoretically shift the recorded high, though current conditions make such deviations unlikely before resolution.